birco - marshalls

Birco

Grate Drainage System

Robust and durable.

Proven and trusted.

Low to high capacity.

Wide range of channels and gratings.

Constant and inbuilt fall channels.

Manufactured in accordance with BS EN 1433:2002.

Birco is a high quality linear drainage system combining robust concrete channels with a range of grates to suit all loading applications.

Birco linear drainage system is to intercept, store and transport surface water in a cost-effective and efficient way.

The Standard RangeMarshalls standard Birco range is extensive utilising five different systems which are detailed in this section:

Birco 100.

Birco 150.

Birco 200.

Birco 300AS

.

Birco Shallow*.

* Where limited channel depth is critical, Birco Shallow is ideally suited and available in 100, 150 and 300mm channel widths.

Birco Special RangesMarshalls also offers a variety of made to order specialist ranges to suit niche applications:

BircoProfil, BircoTop & BircoTopline

BircoProfil, BircoTop and BircoTopline steel channel systems is suitable for shallow construction heights and ensures optimum drainage performance and reliable traffic safety.

BircoPur

A modular filter system to clean run-off from debris, chemicals, combustion residues and leaching and is permanently reliable over the entire service life and especially maintenance-friendly.

BircoDicht

BircoDicht provides reliable, lasting protection in any area where liquids posing a threat to water needs to be collected. Its continuous PEHD lining and massive concrete body ensure that your waterway has a total tight seal.

For further information on these ranges or other specialist requirements please contact our technical department.

Linear Channel

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Linear Drainage D

esign Guide Birco Introduction

Linear Drainage

Linear Drainage D

esign Guide Birco 100

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Linear Drainage Design Guide

Linear Drainage

Channels with removable gratings provide continuous inspection and access for maintenance.

Robust concrete Birco channels are highly resistant to impact damage on site during the construction phase.

Extensive range of gratings, textures, colours, slot profiles and materials are available to the specifier.

Range of base depths and inbuilt falls to provide efficient drainage for all project types.

ChannelsBirco channels are manufactured in high quality, precast concrete using the most up-to-date production techniques. All channels incorporate rolled galvanised steel edge angles firmly cast into each channel to position and attach the appropriate grating.

Birco 100 have channel invert widths of 100mm.

Birco 150, 200 and 300mm systems have channel invert widths in mm equivalent to their designation.

Constant Invert DepthsChannels are available in a range of standard constant invert depths to accommodate a range of drainage requirements.

Inbuilt FallsTo complement the standard constant depth channels, Birco 100, 150 and 200 Channels are also available with in-built gradients.

OutfallsTo complete the system, outfalls must be provided to discharge the water collected by the channels. A range of inline, side and end outlet and junction outfalls are available, all trapped and roddable as standard.

Various Outfalls can accommodate 100mm, 150mm and 225mm diameter discharge pipes.

GratingsThe wide range of grating materials, profiles, colours and loading capacities available, allows Birco to provide a solution to almost any drainage problem:

Grating of galvanised steel, stainless steel, cast iron (grey and ductile), and aluminium are available in the load classifications as defined in BS EN 1433: 2002.

Cast iron (grey and ductile) are offered in a variety of profiles – ribbed (straight or diagonal), wave or ellipse. The ellipse pattern can be further customised with the addition of bespoke emblems or logos. Made to special order for high profile projects.

Ribbed gratings are profiled to ensure water cannot cross the rib but is discharged through the slot into the channel.

Heelsure cast iron gratings, having a 6mm narrow slot width, are designed to minimise the risk of trapping high heels, as well as providing an improved riding surface for small-wheeled trolleys, pushchairs, etc.

Colour coated cast iron gratings which resist surface oxidisation and offer greater design flexibility are available.

Solid covers can be supplied for alternative uses where gratings would not be suitable.

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A multi-purpose low capacity linear drainage system, combining a robust concrete channel with a wide aesthetic choice of cast iron, stainless steel or galvanised grates. A variety of loadings make Birco 100 suitable for light to heavy trafficking so suitable for a variety of projects including civic, commercial, rail and industrial applications.

Birco 100, Manchester

Birco 100Grate Drainage System

6mm HeelsureCast Iron

E600

13mm Diagonal Cast Iron

12mm SlottedCast Iron

E600

20 x 30mm Mesh Galvanised Steel

12mm Slotted Cast Iron

F900

Q10 180

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Linear Drainage D


Linear Drainage

Cast IronSolid Cover

Linear Drainage D

esign Guide Birco 100 Com

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Birco 100 system is suitable for a wide range of applications up to Class

F900 when used with the appropriate grating, the 100 denoting the

100mm width of the invert within the channel.

The Birco 100 system comprises a range of channels, gratings and in-line

outfalls with a common junction outfall for all Birco systems.

Birco 100 channel has a wall thickness of 50mm with a heavy gauge rolled

galvanised steel angle cast into the wall ensuring strength under the

heavier load applications.

The grating and covers are secured by bolting stainless steel bolts into

threaded steel sockets cast into the channel wall.

Birco 100 channels are offered in 5 constant invert depths of 130, 180,

230, 280 and 330mm, designed 0/0, 5/0, 10/0, 15/0 and 20/0 respectively,

in 1000mm and 500mm channel lengths.

Channels with inbuilt falls are available – 20 Inbuilt fall channels

with a gradient 1%.

100 Cast Iron Grating 100 x 12mm slots (2 pieces shown)

100 Cap Outlet106mm O.D.

100 Channel Constant Depth Invert (other invert depths available – see table)

100 T Junction Channel(other invert depths available – see table)

100 End Cap

INBUILT FALLS20 Inbuilt Fall Channels, with a gradient of 1.0%. Inbuilt fall channels are 1000mm long.


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Linear Drainage D

esign Guide Birco 100 H

ydraulic Data

Linear Drainage

Hydraulic Data

FLOW CAPACITY

Birco 100

Channel Type 0/0 5/0 10/0 15/0 20/0*

Gradient “1 in” l/s m/s l/s m/s l/s m/s l/s m/s l/s m/s10 27 3.06 46 3.29 64 3.39 84 3.50 103 3.5520 19 2.16 32 2.32 45 2.40 59 2.47 73 2.5130 16 1.76 26 1.89 37 1.95 48 2.01 59 2.0440 14 1.52 23 1.64 32 1.69 42 1.74 51 1.7750 12 1.36 20 1.46 29 1.51 37 1.56 46 1.5875 10 1.11 17 1.19 23 1.23 30 1.27 37 1.29

100 9 0.96 14 1.03 20 1.06 26 1.10 32 1.11150 7 0.78 12 0.84 16 0.87 21 0.89 26 0.91200 6 0.67 10 0.72 14 0.75 18 0.77 23 0.78300 5 0.55 8 0.59 12 0.61 15 0.63 18 0.64400 4 0.47 7 0.51 10 0.53 13 0.54 16 0.55500 4 0.42 6 0.45 9 0.47 12 0.48 14 0.49750 3 0.34 5 0.37 7 0.38 9 0.39 12 0.40

1000 3 0.29 4 0.32 6 0.33 8 0.34 10 0.341500 2 0.24 4 0.26 5 0.27 7 0.27 8 0.282000 2 0.21 3 0.22 4 0.23 6 0.24 7 0.24

The Birco hydraulic data stated in the following tables comprises of flow capacity, in litres per second (l/s) and velocity in metres per second (m/s). This data has been calculated using the Colebrook-White formulae.

BIRCO 100

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0/0 180 130IBF 1-5* 190-230* 140-180*

5/0 230 180IBF 6-10* 240-280* 190-230*

10/0 280 230IBF 11-15* 290-330* 240-280*

15/0 330 280IBF 16-20* 340-380* 290-330*

20/0 380 330

*-dimensions at downstream end; deduct 10mm for upstream end.. All dimensions measured from grating surface, pavement should be 5mm above this level.

BIRCO 100 SHALLOW

BIRCO LITE BIRCO 100 BIRCO 150 BIRCO 200

BIRCO 300

BIRCO 150 SHALLOW BIRCO 200 SHALLOW BIRCO 300 SHALLOW

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200

Birco 100 with 0/0 Channel Unit





Equivalent PipeDiameter (mm) 190





(20/0)

(0/0)

(15/0)

(10/0)(5/0)

180

20030

100

230

280

330

380

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Constant Depth Channels

Length (mm)

Width (mm)InvertWidth (mm)

Depth (mm)

InvertDepth (mm)

Unit Weight (kg) Item Code

Channel 0/0 1000 200 100 180 130 54 DR080105Channel 5/0 1000 200 100 230 180 66 DR080115Channel 10/0 1000 200 100 280 230 78 DR080125

Channel 15/0 1000 200 100 330 280 90 DR080135

Channel 20/0 1000 200 100 380 330 102 DR080145Channel 0/0 500 200 100 180 130 27 DR090150Channel 5/0 500 200 100 230 180 33 DR090160

Channel 10/0 500 200 100 280 230 38 DR090170

Channel 15/0 500 200 100 330 280 43 DR090180

Channel 20/0 500 200 100 380 330 51 DR090190

Shallow 80 1000 200 100 80 50 DR420450

Shallow 100 1000 200 100 100 70 DR420460

Shallow 150 1000 200 100 150 110 DR420480

Gratings LoadingLength (mm)

Width (mm)

Unit Weight (kg)

Item Code

6mm Heelsure Cast Iron E600 500 187 7.2 DR11513512mm Slotted Cast Iron E600 500 187 6.2 DR11512513mm Diagonal Cast Iron E600 500 187 12.4 DR115020

20 x 30mm Mesh Galvanised Steel E600 500 187 4.86 DR115285

Cast Iron Solid Cover E600 500 187 7.46 DR115250

12mm Slotted Cast Iron F900 500 187 7.4 DR115130

End Cap/Cap Outlets Unit Weight (kg) Item Code

100 End Cap 0/0 1 DR045150100 End Cap 5/0 1.2 DR045155100 End Cap 10/0 1.4 DR045160

100 End Cap 15/0 1.6 DR045165

100 End Cap 20/0 1.8 DR045170

Cap Outlet 0/0 1 DR045175Cap Outlet 5/0 1.2 DR045180Cap Outlet 10/0 1.4 DR045185

Cap Outlet 15/0 1.6 DR045190

Cap Outlet 20/0 1.8 DR045195

Shallow End Cap 80-100 0.02 DR425150

Shallow End Cap 120-150 0.03 DR435250


Gratings

End Cap/Cap Outlets

T Junction Channels Unit Weight (kg) Item Code

T- Channel 0/0 27 DR010210

T- Channel 5/0 33 DR010220

T- Channel 10/0 39 DR010230

C T Junction Channels

Birco 100 with reference numbers indicated in bold black are available ex-stock.Birco 100 with reference numbers indicated in light are manufactured to order.Contact our sales office to discuss your requrements.

F

Outfalls Unit Weight (kg) Item Code

100 End Outfall 100mm 105 DR130170

100 Side Outfall 150mm 142 DR130175100 Shallow Outfall 100mm 142 DR420480

Outfalls

Birco 100 Component Codes

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Birco 100 Channels are available with inbuilt falls. Inbuilt Fall Channels increase drainage discharge capacity by improving flow rates and thereby increasing the overall discharge capacity of the system. Inbuilt fall channels are 1000mm long.

Inbuilt Fall

Inbuilt Fall ChannelsLength (mm)

Width (mm)

InvertWidth (mm)

Depth (mm) Upsteam/Downstream

Invert Depth (mm) Upsteam/Downstream

Unit Weight (kg)

Item Code

IBF Channel No. 1 1000 200 100 180/190 130/140 57 DR020010

IBF Channel No. 2 1000 200 100 190/200 140/150 57.5 DR020020

IBF Channel No. 3 1000 200 100 200/210 150/160 61 DR020030

IBF Channel No. 4 1000 200 100 210/220 160/170 62.5 DR020040

IBF Channel No. 5 1000 200 100 220/230 170/180 65 DR020050

IBF Channel No. 6 1000 200 100 230/240 180/190 67 DR020060

IBF Channel No. 7 1000 200 100 240/250 190/200 69 DR020070

IBF Channel No. 8 1000 200 100 250/260 200/210 71 DR020080

IBF Channel No. 9 1000 200 100 260/270 210/220 73 DR020090

IBF Channel No. 10 1000 200 100 270/280 220/230 77 DR020100

IBF Channel No. 11 1000 200 100 280/290 230/240 77 DR020110

IBF Channel No. 12 1000 200 100 290/300 240/250 81.5 DR020120

IBF Channel No. 13 1000 200 100 300/310 250/260 81 DR020130

IBF Channel No. 14 1000 200 100 310/320 260/270 86.5 DR020140

IBF Channel No. 15 1000 200 100 320/330 270/280 85 DR020150

IBF Channel No. 16 1000 200 100 330/340 280/290 91 DR020160

IBF Channel No. 17 1000 200 100 340/350 290/300 93.5 DR020170

IBF Channel No. 18 1000 200 100 350/360 300/310 96 DR020180

IBF Channel No. 19 1000 200 100 360/370 310/320 98.5 DR020190

IBF Channel No. 20 1000 200 100 370/380 320/330 101 DR020200

Inbuilt Fall Channels

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Linear Drainage

A medium capacity linear drainage system which combines a robust concrete channel with a wide aesthetic choice of cast iron and galvanised steel grates. Birco 150 is available up to the highest loading classification making it suitable for a variety of commercial, rail and industrial applications.




E600

12mm SlottedGalvanised Cast Iron

E600

20 X 30mm Mesh Galvanised Steel



F900

Birco 150, London

Q10 180

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Linear Drainage D


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Birco 150 offers an increased flow capacity over the Birco 100 and is suitable

for applications up to and including Class F900, when used with the

appropriate grating.

The Birco 150 system comprises a range of channels, gratings and covers

together with complementary in-line outfalls. A common junction outfall is

available for all Birco systems available for use in the Birco 150 range up to

the 15/0 channel.



Birco 150 channels are offered in 5 constant invert depths of 180,

230, 280, 330 and 380mm designated 0/0, 5/0, 10/0, 15/0 and 20/0

respectively, in 500 & 1000mm channel lengths.

Channels with inbuilt falls are available – 20 Inbuilt fall

channels with a gradient 1%.

150 Cast Iron Grating150 x 12mm slots(2 pieces shown)

150 Cap Outlet (0/0) 158mm O.D.

150 Channel (0/0) Constant Depth Invert(other invert depths available – see table)

150 T Junction Channel (0/0) Constant Depth Invert (other invert depths available – see table)

150 End Cap (0/0)

INBUILT FALLS20 Inbuilt Fall Channels, with a gradient of 1%. Inbuilt fall channels are 1000mm long.


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ydraulic Data

Linear Drainage

BIRCO 150

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0/0 230 180IBF 1-5* 240-280* 190-230*

5/0 280 230IBF 6-10* 290-330* 240-280*

10/0 330 280IBF 11-15* 340-380* 290-330*

15/0 380 330IBF 16-20* 390-430* 340-380*

20/0 430 380


BIRCO 100 SHALLOW


BIRCO 300


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Hydraulic Data

Birco 150

Channel Type 0/0 5/0 10/0 15/0 20/0*

Gradient “1 in” l/s m/s l/s m/s l/s m/s l/s m/s l/s m/s10 79.22 3.96 95.62 4.09 115.54 4.19 133.53 4.27 152.04 4.3320 55.93 2.8 67.52 2.89 81.58 2.96 94.28 3.01 107.36 3.0630 45.61 2.28 55.06 2.35 66.54 2.41 76.9 2.46 87.56 2.4940 39.46 1.97 47.64 2.04 57.57 2.09 66.53 2.13 75.76 2.1650 35.26 1.76 42.57 1.82 51.45 1.86 59.46 1.9 67.71 1.9375 28.74 1.44 34.7 1.48 41.93 1.52 48.47 1.55 55.19 1.57

100 24.85 1.24 30.01 1.28 36.26 1.31 41.91 1.34 47.73 1.36150 20.24 1.01 24.44 1.04 29.54 1.07 34.14 1.09 38.88 1.11200 17.49 0.87 21.12 0.9 25.53 0.92 29.51 0.94 33.61 0.96300 14.23 0.71 17.19 0.73 20.78 0.75 24.02 0.77 27.35 0.78400 12.29 0.61 14.84 0.63 17.94 0.65 20.74 0.66 23.62 0.67500 10.97 0.55 13.24 0.57 16.01 0.58 18.51 0.59 21.08 0.6750 8.91 0.45 10.76 0.46 13.01 0.47 15.04 0.48 17.13 0.49

1000 7.68 0.38 9.28 0.4 11.22 0.41 12.97 0.41 14.78 0.421500 6.23 0.31 7.53 0.32 9.1 0.33 10.52 0.34 11.99 0.342000 5.36 0.27 6.48 0.28 7.84 0.28 9.07 0.29 10.33 0.29




FLOW CAPACITY




(20/0)(15/0)

(10/0)(5/0)

(0/0)






230

280

330

25030

380

430

150


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A

T-Junction ChannelsUnit Weight (kg)

Item Code

T-Channel 0/0 38 DR190020


T-Channel 10/0 50 DR190040

E

A

C

Gratings LoadingLength (mm)

Width (mm)

Unit Weight (kg)

Item Code

6mm Heelsure Cast Iron E600 500 237 10.5 DR19524012mm Slotted Cast Iron E600 500 237 11.0 DR195210

12mm Slotted Galvanised Cast Iron E600 500 237 11 DR197030

20 x 30mm Mesh Galvanised Steel E600 500 237 7.36 DR197290

20 x 30mm Mesh Galvanised Steel E600 1000 237 15 DR197280

Cast Iron Solid Cover E600 500 237 10.3 DR195230

12mm Slotted Cast Iron F900 500 237 12.20 DR195220

End Cap/Cap Outlets Unit Weight (kg) Item Code

150 End Cap 0/0 1 DR197200150 End Cap 5/0 1.2 DR197210150 End Cap 10/0 1.4 DR197220

150 End Cap 15/0 1.6 DR197230

150 Cap Outlet 0/0 2 DR200250150 Cap Outlet 5/0 2 DR200260150 Cap Outlet 10/0 2 DR200270

150 Cap Outlet 15/0 2 DR200280


B


Length (mm)

Width (mm)

InvertWidth (mm)

Depth (mm)

InvertDepth (mm)

Unit Weight (kg)

Item Code

Channel 0/0 1000 250 150 230 180 76 DR160200Channel 5/0 1000 250 150 280 230 88 DR160205Channel 10/0 1000 250 150 330 280 100 DR160210Channel 15/0 1000 250 150 380 330 112 DR160215Channel 20/0 1000 250 150 430 380 124 DR160220Channel 0/0 500 250 150 230 180 38 DR170206Channel 5/0 500 250 150 280 230 44 DR170226

Channel 10/0 500 250 150 330 280 50 DR170236

Channel 15/0 500 250 150 380 330 45 DR170246


Gratings

T Junction Channels

F

Outfalls Unit Weight (kg) Item Code

150 End Outfall 100mm 140 DR210270

150 Side Outfall 150mm 158 DR210280

Outfalls

End Cap/Cap Outlets

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D

Birco 150 Channels are available with inbuilt falls. Inbuilt Fall Channels increase drainage discharge capacity by improving flow rates and thereby increasing the overall discharge capacity of the system. Inbuilt fall channels are 1000mm long.

Inbuilt Fall

Inbuilt Fall ChannelsLength (mm)

Width (mm)

InvertWidth (mm)

Depth (mm) Upsteam/Downstream

Invert Depth (mm)Upsteam/Downstream

Unit Weight (kg)

Item Code

IBF Channel No. 1 1000 250 150 230/240 180/190 76 DR180010

IBF Channel No. 2 1000 250 150 240/250 190/200 77 DR180020

IBF Channel No. 3 1000 250 150 250/260 200/210 77 DR180030

IBF Channel No. 4 1000 250 150 260/270 210/220 79 DR180040

IBF Channel No. 5 1000 250 150 270/280 220/230 80 DR180050

IBF Channel No. 6 1000 250 150 280/290 230/240 81 DR180060

IBF Channel No. 7 1000 250 150 290/300 240/250 82 DR180070

IBF Channel No. 8 1000 250 150 300/310 250/260 83 DR180080

IBF Channel No. 9 1000 250 150 310/320 260/270 84 DR180090

IBF Channel No. 10 1000 250 150 320/330 270/280 85 DR180100

IBF Channel No. 11 1000 250 150 330/340 280/290 86 DR180110

IBF Channel No. 12 1000 250 150 340/350 290/300 87 DR180120

IBF Channel No. 13 1000 250 150 350/360 300/310 88 DR180130

IBF Channel No. 14 1000 250 150 360/370 310/320 89 DR180140

IBF Channel No. 15 1000 250 150 370/380 320/330 90 DR180150

IBF Channel No. 16 1000 250 150 380/390 330/340 91 DR180160

IBF Channel No. 17 1000 250 150 390/400 340/350 92 DR180170

IBF Channel No. 18 1000 250 150 400/410 350/360 93 DR180180

IBF Channel No. 19 1000 250 150 410/420 360/370 94 DR180190

IBF Channel No. 20 1000 250 150 420/430 370/380 95 DR180200

Inbuilt Fall Channels

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Linear Drainage

Linear Channel18mm Slotted Cast Iron18mm Slotted Cast Iron


Birco 200, Gloucestershire

A medium to high capacity linear drainage system which combines a robust concrete channel with a cast iron slotted grate. Suitable for loadings up to F900, making Birco 200 ideal for projects where vehicles impose particularly heavy wheel loads such as industrial applications.

E600

Q10 180Q10 115

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Components

Birco 200 is a high capacity system, suitable for applications up to and

including loading class F900, when used with appropriate grating.

The Birco 200 system comprises of a range of channels, gratings and

in-line outfalls.



Birco 200 channels are produced in 4 constant invert depths of 240,

265, 290 and 315mm designated 0/0, 5/0, 10/0 and 15/0 respectively, in

1000mm channel lengths.

200 End Cap (0/0)

200 Cast Iron Grating 200 x 18mm slots(2 pieces shown)

200 Cap Outlet (0/0) 198mm O.D.

200 Channel (0/0) Constant Depth Invert(other invert depths available, see table)

200 T Junction Channel (0/0)


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ydraulic Data

Linear Drainage

BIRCO 200

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0/0 310 2405/0 335 265

10/0 360 29015/0 385 315

BIRCO 100 SHALLOW


BIRCO 300


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Hydraulic Data

FLOW CAPACITY


Birco 200

Channel Type 0/0 5/0 10/0 15/0Gradient “1 in” l/s m/s l/s m/s l/s m/s l/s m/s

10 176 4.78 204 4.90 233 4.99 262 5.0720 124 3.38 144 3.46 165 3.52 185 3.5830 101 2.76 118 2.82 134 2.87 151 2.9240 88 2.38 102 2.44 116 2.49 131 2.5350 78 2.13 91 2.18 104 2.22 117 2.2675 64 1.74 74 1.78 85 1.81 95 1.84

100 55 1.50 64 1.54 73 1.57 82 1.59150 45 1.22 52 1.25 60 1.28 67 1.30200 39 1.06 45 1.08 52 1.10 58 1.12300 32 0.86 37 0.88 42 0.90 47 0.91400 27 0.74 32 0.76 36 0.78 41 0.79500 24 0.66 28 0.68 32 0.69 36 0.70750 20 0.54 23 0.55 26 0.56 30 0.57

1000 17 0.47 20 0.48 23 0.49 26 0.491500 14 0.38 16 0.39 18 0.40 21 0.402000 12 0.33 14 0.33 16 0.34 18 0.35






(15/0)*


(0/0)


(10/0)


(5/0)*

310

335

330

200

35

360

385



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C

Gratings Loading Length (mm) Width (mm) Depth (mm) Unit Weight (kg) Item Code

18mm Slotted Cast Iron E600 520 287 35 12.5 DR2754100


Length (mm)

Width (mm)

InvertWidth (mm)

Depth (mm)

InvertDepth (mm)

Unit Weight (kg)

Item Code

Channel 0/0 1000 330 200 310 240 142 DR240300Channel 5/0 1000 330 200 335 265 140 DR240310

Channel 10/0 1000 330 200 360 290 147.5 DR240320

Channel 15/0 1000 330 200 385 315 153 DR240330

A

B Constant Depth Channels

Gratings

* Half meter channel are available upon request

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rainage

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B

D

E

End Cap/Cap OutletsUnit Weight (kg)

Item Code

200 End Cap 2 DR280350200 Cap Outlet 2.5 DR280370

OutfallsUnit Weight (kg)

Item Code

200 Outfall 150mm Side 186 DR290380

D

E

T - Junction Channels Unit Weight (kg) Item Code



C T Junction Channels

End Cap/Cap Outlets

Outfalls

Linear Channel

E600 F900

20mm Slotted Cast Iron20mm Slotted Cast Iron


A high capacity linear drainage system which combines a robust concrete channel with a cast iron slotted grate. Suitable for loadings up to F900, Birco 300 is suitable for special projects with abnormally heavy wheel loads such as ports and aircraft pavements.

Q10 115 Q10 180

Linear Channel

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Linear Drainage D


Linear Drainage

Linear Drainage D


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Linear Drainage

Components

Birco 300AS

has an increased flow capacity, designed to cater for the

large surface discharges generated by areas such as aircraft pavements

and industrial hardstandings.

Birco 300AS

is suitable for applications up to and including Class F900

with the appropriate grating.

The Birco 300AS

system comprises a single channel with a range of cast

iron gratings.



Birco 300AS

channels are produced in 2 constant invert depths

of 335mm and 475mm.

300 Cast Iron Grating125 x 20mm slots(2 pieces shown)

300 ChannelConstant Depth Invert

300 Cap Outlet 308mm O.D.

300 End Cap


Base Channels Length (mm) Width (mm)Invert Width (mm)

Depth (mm)InvertDepth (mm)



Channel Accessories Unit Weight (kg) Item Code

300 AS End Cap 2.5 DR395530300 AS Cap Outlet 3 DR395540

300AS Outfall 220 DR395550



20mm Slotted Cast Iron E600 500 417 45 20.20 DR39062020mm Slotted Cast Iron F900 500 417 45 24.7 DR390630

Linear Channel

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Linear Drainage D


ydraulic Data

Linear Drainage

Hydraulic Data

Equivalent PipeDiameter 350mm

Birco 300AS

FLOW CAPACITY

ref. d i

DR3805000 410 335

DR3805200 550 475

43035

300

100

475

550

75

440470

470440

100

300

430

335

410

75

550mm Deep Channel410mm Deep Channel


Component Codes

Birco 300AS

All dimensions are measured from the grating surface, pavement should be 5mm above this level.

Birco 300

Channel Type 410 550Gradient

l/s m/s l/s m/s‘1 in’

10 493.58 6.16 806.34 6.620 348.66 4.35 569.63 4.6630 284.46 3.55 464.77 3.8140 246.19 3.07 402.26 3.2950 220.08 2.75 359.6 2.9475 179.48 2.24 293.28 2.4

100 155.28 1.94 253.75 2.08150 126.57 1.58 206.87 1.69200 109.46 1.37 178.92 1.46300 89.17 1.11 145.77 1.19400 77.08 0.96 126.02 1.03500 68.82 0.86 112.54 0.92750 56 0.7 91.58 0.75

1000 48.36 0.6 79.1 0.651500 39.3 0.49 64.3 0.532000 33.9 0.42 55.48 0.45

Base Channels Length (mm) Width (mm)Invert Width (mm)

Depth (mm)InvertDepth (mm)



Channel Accessories Unit Weight (kg) Item Code

300 AS End Cap 2.5 DR395530300 AS Cap Outlet 3 DR395540

300AS Outfall 220 DR395550



20mm Slotted Cast Iron E600 500 417 45 20.20 DR39062020mm Slotted Cast Iron F900 500 417 45 24.7 DR390630

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Linear D

rainag

e Design

Guid

e Birco 300 Hydraulic D

ataLin

ear Drain

age

188188

Hydraulic Data


Birco 300AS

FLOW CAPACITY

ref. d i

DR3805000 410 335

DR3805200 550 475

43035

300

100

475

550

75

440470

470440

100

300

430

335

410

75

550mm Deep Channel410mm Deep Channel


Component Codes

Birco 300AS


Base 205

Gradient Zero 1 in 1000 1 in 500 1 in 400 1 in 300 1 in 200 1 in 100 1 in 50Length (m) l/s m/s l/s m/s l/s m/s l/s m/s l/s m/s l/s m/s l/s m/s l/s m/s

50 31 0.48 37 0.58 42 0.66 45 0.70 48 0.75 55 0.86 64 1.00 79 1.23

100 27 0.42 36 0.56 43 0.67 47 0.73 52 0.81 62 0.97 71 1.11 86 1.34

150 24 0.38 35 0.55 44 0.69 48 0.75 55 0.86 69 1.08 78 1.22 93 1.45

200 20 0.31 33 0.52 44 0.69 50 0.78 59 0.92 76 1.19 85 1.33 99 1.55

250 17 0.27 32 0.50 45 0.70 52 0.81 62 0.97 83 1.30 92 1.44 106 1.66

450

45

d

i

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Linear Drainage D

esign Guide Birco Shallow

Linear Drainage

A low to medium capacity system and the perfect solution where excavation depths are limited. Available across a variety of cast iron, stainless steel or galavanised grates offering both aesthetic and loading choice. Supported by a comprehensive range of accessories and ancillary units making Birco Shallow ideal for civic, commercial and rail applications.

Q10 180

Birco ShallowGrate Drainage System


E600

13mm Diagonal Cast Iron



E600

20 x 30mm Mesh Galvanised Steel



F900


Hydraulic Data


ref. d i ref. d i ref. d i

DR4204500 80 50 DR4304600 120 80 DR4504900 300 225

DR4204600 100 70 DR4304700 150 110

DR4204800 150 110

BIRCO 100 SHALLOW


BIRCO 300


i

BIRCO 100 SHALLOW


BIRCO 300


i

200

30

i

d

250

30

i

d

BIRCO 100 SHALLOW


BIRCO 300


i

450

45

i

d

Linear Drainage D


Hydraulic D

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Linear Drainage

Birco 100 Shallow

Channel Type 20 (80mm Deep) 40 (100mm Deep) 80 (150mm Deep)Gradient “1 in” l/s m/s l/s m/s l/s m/s

10 3.38 1.69 9.03 2.26 22.64 2.8320 2.38 1.19 6.37 1.59 15.97 230 1.94 0.97 5.19 1.3 13.02 1.6340 1.68 0.84 4.49 1.12 11.26 1.4150 1.5 0.75 4.01 1 10.06 1.2675 1.22 0.61 3.26 0.82 8.19 1.02

100 1.05 0.53 2.82 0.7 7.08 0.88150 0.85 0.43 2.29 0.57 5.76 0.72200 0.74 0.37 1.98 0.49 4.97 0.62300 0.6 0.3 1.6 0.4 4.04 0.51400 0.51 0.26 1.38 0.35 3.49 0.44500 0.46 0.23 1.23 0.31 3.11 0.39750 0.37 0.18 1 0.25 2.52 0.32

1000 0.32 0.16 0.86 0.21 2.17 0.271500 0.26 0.13 0.69 0.17 1.76 0.222000 0.22 0.11 0.59 0.15 1.51 0.19

Birco 150 Shallow

Channel Type 50 (120mm Deep) 80 (150mm Deep)Gradient “1 in” l/s m/s l/s m/s

10 20.77 2.77 39.43 3.2920 14.65 1.95 27.83 2.3230 11.95 1.59 22.69 1.8940 10.33 1.38 19.63 1.6450 9.23 1.23 17.54 1.4675 7.52 1 14.29 1.19

100 6.49 0.87 12.35 1.03150 5.28 0.7 10.05 0.84200 4.56 0.61 8.68 0.72300 3.71 0.49 7.06 0.59400 3.2 0.43 6.1 0.51500 2.85 0.38 5.44 0.45750 2.31 0.31 4.41 0.37

1000 1.99 0.27 3.8 0.321500 1.61 0.21 3.08 0.262000 1.38 0.18 2.65 0.22

Birco 300 Shallow

Channel Type 180 (300mm Deep)Gradient “1 in” l/s m/s

10 285.6 5.2920 201.71 3.7430 164.55 3.0540 142.4 2.6450 127.28 2.3675 103.78 1.92

100 89.77 1.66150 73.16 1.35200 63.26 1.17300 51.51 0.95400 44.51 0.82500 39.74 0.74750 32.31 0.6

1000 27.89 0.521500 22.65 0.422000 19.53 0.36


Component Codes

Linear Channel

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Linear Drainage D


Component Codes

Linear Drainage

Base Channels Length (mm) Width (mm)InvertWidth (mm) Depth (mm)

InvertDepth (mm)

Channel Item Code

100 Shallow 1000 200 100 80 80 DR420450

1000 200 100 100 100 DR420460

1000 200 100 150 150 DR420480

150 Shallow 1000 250 150 120 120 DR430460

1000 250 150 150 150 DR430470

300 Shallow 1000 430 300 300 300 DR420490

Gratings Loading Length (mm) Width (mm) Unit Weight (kg) Item Code

Birco 100 6mm Heelsure Cast Iron E600 500 187 7.2 DR115135Birco 100 12mm Slotted Cast Iron E600 500 187 6.2 DR115125

Birco 100 13mm Diagonal Cast Iron E600 500 187 12.4 DR115020

Birco 100 20 x 30mm Mesh Galvanised Steel E600 500 187 4.86 DR115285

Birco 100 Cast Iron Solid Cover E600 500 187 7.46 DR115250

Birco 100 12mm Slotted Cast Iron F900 500 187 7.4 DR115130

Birco 150 6mm Heelsure Cast Iron E600 500 237 10.5 DR195240Birco 150 12mm Slotted Cast Iron E600 500 237 11.0 DR195210

Birco 150 12mm Slotted Galvanised Cast Iron E600 500 237 11 DR197030

Birco 150 20 x 30mm Mesh Galvanised Steel E600 500 237 7.36 DR197290

Birco 150 20 x 30mm Mesh Galvanised Steel E600 1000 237 15 DR197280

Birco 150 Cast Iron Solid Cover E600 500 237 10.3 DR195230Birco 150 12mm Slotted Cast Iron F900 500 237 12.20 DR195220

Birco 300 20mm Slotted Cast Iron E600 500 417 20.20 DR390620Birco 300 20mm Slotted Cast Iron F900 500 417 24.7 DR390630

Channel Accessories Weight (kg) Item Code

100 Shallow End Cap 80 - 120 0.02 DR425150



300 Shallow End Cap 300 0.06 DR455540

Birco Shallow with reference numbers indicated in bold black are available ex-stock.Birco Shallow with reference numbers indicated in light are manufactured to order.Contact our sales office to discuss your requrements.

Birco 300ASBirco 200Birco 150Birco 100

END OUTFALLS

SIDE OUTFALLS

Birco Outfalls

Linear Drainage D

esign Guide Birco O

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Linear Drainage

For 100mmdia pipe

100 In-line Outfall 100 In-line Trap (supplied in two sections with universal-fit seal and stopper included)

For 150mmdia pipe

150 In-line Outfall 150 In-line Trap (supplied in two sections with universal-fit seal and stopper included)

100 In-line Outfall 150 Side Trap (supplied in two sections with universal-fit seal and stopper included)

For 150mm dia pipe

150 In-line Outfall 150 Side Trap(supplied in two sections with universal-fit seal and stopper included)

For 150mm dia pipe

For 150mm dia pipe

200 In-line Outfall, 150 Side Trap. (supplied in two sections with universal-fit seal and stopper included)

300AS In-line Outfall, 300 side outlet (supplied in one section)

Birco System

Galvanised Junction/Outfall Grating20 x 30mm mesh

Cast Iron Junction/Outfall Grating100 x 8mm slots

For 150mmor 225mmdia. pipe

Junction/Outfall Unit(supplied in three sections,with frame & frame bolts, universal-fit seal and stopper included)

Birco 100 In-Line Outfalls and Standard Gratings*

Item Description Weight (kg) Item Code

Outfalls 100 In-line Trap (for 100mm dia pipe) 105 DR1301700

150 Side Trap (for 150mm dia pipe) 142 DR1301750

Birco 150 In-Line Outfalls and Standard Gratings*


Outfalls 150 In-line Trap (for 150mm dia pipe) 140 DR2102700

150 Side Trap (for 150mm dia pipe) 158 DR2102800

Birco 200 In-Line Outfall and Standard Gratings*


Outfalls 150 Side Trap (for 150mm dia pipe) 186 DR2903800

Birco 300AS Outfall


Outfalls 300AS Outfall 220 DR3955500

Birco System Junction Outfalls and Gratings*


Outfalls Junction/Outfall 150 (for 150mm dia pipe) 340 DR4604000

Junction/Outfall 225 (for 225mm dia pipe) 305 DR4604050

Hydraulic Data

Component Codes

Linear Channel

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Linear Drainage D

esign Guide Birco O

utfall Hydraulic D

ataLinear D

rainage

Theoretical Outfall Capacities

Outfall Type Outlet Pipe Diameter (mm) m/s l/sBirco 100 Inline End Outlet Outfall 100 2.27 11Birco 100 Inline Side Outlet Outfall 150 2.42 26Birco 150 inline End Outlet Outfall 150 2.42 26Birco 150 inline Side Outlet Outfall 150 2.42 26Birco 200 Inline Side Outlet Outfall 150 2.42 26Birco 300 Inline Side Outlet Outfall 300 2.25 160

Junction Outfall 150mm 150 3.55 39Junction Outfall 225mm 225 3.64 89

*The outfall capacities quoted are theoretical calculated figures

*Special Gratings also available.Items available ex-stock.All outfall units are packed individually.

Standard Details

Linear Drainage D

esign Guide Birco Standard D

etailsw

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Linear Drainage

Drawing 1 of 2

230-430

310-410

410-550

230-430

180-380

230-430

Standard Details

Linear Channelw

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ater-managem

entLinear D

rainage Design G

uide Birco Standard Details

Linear Drainage

5

Refe

r To

Birc

o C

hann

el

Sect

ions

For

Con

cret

e G

rade

And

Dim

ensi

on 'A

'

Refe

r To

Birc

o

M-fl

ex S

eala

nt

Cha

nnel

Sec

tions

For

C

oncr

ete

Gra

de A

nd

Dim

ensi

on 'A

'

Refe

r To

Birc

o C

hann

el

Sect

ions

For

Con

cret

e G

rade

And

Dim

ensi

on 'A

'

Refe

r To

Birc

o C

hann

el

Sect

ions

For

C

oncr

ete

Gra

de

And

Dim

ensi

on 'A

'

723

Refe

r To

Birc

o C

hann

el

Sect

ions

For

Det

ailin

g O

f Su

rfac

e A

djac

ent T

o U

nit.

Refe

r To

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o C

hann

el

Sect

ions

For

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ailin

g O

f Su

rfac

e A

djac

ent T

o U

nit.

Refe

r To

Birc

o C

hann

el

Sect

ions

For

Det

ailin

g O

f Su

rfac

e A

djac

ent T

o U

nit.

Rem

ovab

le P

lug

For R

oddi

ng A

cces

s To

Pip

e C

onne

ctio

n

Refe

r To

Birc

o C

hann

el

Sect

ions

For

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ailin

g O

f Su

rfac

e A

djac

ent T

o U

nit.

Refe

r To

Birc

o C

hann

el S

ectio

ns F

or

Det

ailin

g O

f Sur

face

A

djac

ent T

o U

nit.

(Uni

t Is

400m

m L

ong)

(Uni

t Is

500m

m L

ong)

(Uni

t Is

500m

m L

ong)

(Uni

t Is

250m

m W

ide)

(Uni

t Is

500m

m L

ong)

5

5

5

5

150

Ø

Not

e: A

ll In

vert

& O

vera

ll D

epth

s A

re M

easu

red

From

Car

riage

way

Sur

face

225

Ø

Cut

-out

Sec

tions

In

End

Of U

nit S

uit A

ny

Dep

th O

f Cha

nnel

.

Cut

-out

Sec

tions

In

End

Of U

nit S

uit A

ny

Dep

th O

f Cha

nnel

.

Rem

ovab

le P

lug

For R

oddi

ng A

cces

s To

Pip

e C

onne

ctio

n

Rem

ovab

le P

lug

For R

oddi

ng A

cces

s To

Pip

e C

onne

ctio

n

Invert:Junction Outfall 225 - 846mmJunction Outfall 150 - 805mm

150

Ø15

0Ø

300

Ø

Cut

-out

Sec

tions

In

End

Of U

nit S

uit A

ny

Dep

th O

f Cha

nnel

.

400

430

735

500

430

200

560

330

980

1290

725

720

Invert Depth 885

A

A

Cut

-out

Sec

tions

In

End

Of U

nit S

uit A

ny

Dep

th O

f Cha

nnel

M-fl

ex S

eala

nt

M-fl

ex S

eala

nt

M-fl

ex S

eala

nt

M-fl

ex S

eala

nt

Invert 373mm

Invert 373mm

Bir

co J

unct

ion

Out

fall

150/

225

Rem

ovab

le P

lug

For R

oddi

ng A

cces

s To

Pip

e C

onne

ctio

n

A

A

A

AA

A

Bir

co 1

00, 1

50, 2

00 &

300

AS

Out

fall

Det

ails

Bir

co 3

00A

S Out

fall

Bir

co 2

00 -

Inlin

e Si

de

Out

fall

Bir

co 1

50 -

Inlin

e En

d O

utfa

llB

irco

100

- In

line

Sid

e O

utfa

ll

A

A

A

720

Invert 381mm

Refe

r To

Birc

o C

hann

elSe

ctio

ns F

or

Con

cret

e G

rade

And

Dim

ensi

on 'A

'

Drawing 2 of 2

Linear Drainage D

esign Guide Birco Standard D

etailsw

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Linear Drainage

Standard Details Specification

Notes For Birco Installation Details

Drawings 1 to 2

1. All loading applications are as defined in BS EN 1433:2002 “Drainage

Channels for Vehicular and Pedestrian Areas - Classification, Design,

Testing Requirements, Marking and Quality Control”.

2. Birco outfall sections shall be jointed using Marshalls’ M-Flex sealant.

3. The concrete grade and dimensions for bed, haunch and surround are

shown in the Birco section of the Design Guide.

4. Where the concrete surround is taken to the surface, the concrete

surround should have the appropriate freeze thaw resistance.

5. For high loading applications with poor conditions, consideration may be

given to the local thickening of the sub-base.

6. Marshalls’ vertical joint sealant, M-Flex, shall be applied to all vertical joints

of the channels.

7. Birco gratings should be chosen to suit the appropriate loading

application, taking into account both static and dynamic loading

conditions.

8. Movement joints details that fully isolate the Birco system whilst

maintaining restraint shall be provided adjacent to all concrete slabs even

when the slab is covered by another material. The use of dowel bars in

concrete slab joints is common and should be considered especially for

higherloading applications.

9. All grating bolts should be tightened to the appropriate torque shown in

the Birco section of the Design Guide.

10. The top surface of the grating shall be between 5mm below the final

pavement level.

11. All dimensions are in millimetres.

IntroductionThe following specification covers the complete Birco Linear Drainage

System including ancillary fittings and is compatible with the Standard

Detail Sheets.

Birco1. The linear drainage system shall be 100/150/200/300

AS , * manufactured

in pre-cast concrete, with the exception of certain fitments

manufactured in steel or cast iron, as supplied by Marshalls, Halifax HX5

9HT in accordance with Standard Detail Sheets.

2. The linear drainage shall be a two part system consisting of

galvanised steel/cast iron gratings/covers bolted to precast concrete

drainage channels reference (0/0) /(5/0)/(10/0)/(15/0)/(20/0)* deep

together with drainage channels that have 100-150-200 1.0%)* inbuilt fall. The overall width of the system shall be not less than

160/200/250/330/430*mm.

3. All components of the Marshalls’ Birco System shall comply with Load

Classification C250/D400/E600/F900* in accordance with BS EN

1433:2002 and the following:

(i) The Gratings shall be bolted to the drainage channel with a

minimum of 4 No. M12/M16mm Ø stainless steel bolts per metre

(ii) The drainage channel will have cast-in 4mm (100/150/200/300)* thick galvanised steel edge angles

(iii) The system shall have a minimum of refer to table* mm²/m water

inlet aperture area

(iv) The drainage channels shall have an invert width of 100/150/200/300*mm*

4. The linear drainage system comprising gratings, covers, constant depth

and inbuilt fall channels, outfalls, T junctions channels, end caps, cap

outlets, and sealants shall be installed to the line and levels indicated

in the contract documents and in accordance with the manufacturer’s

instructions and Standard Details.

Note: * delete as required

Linear Channel

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Linear Drainage D

esign Guide Birco Construction

Linear Drainage

Construction

Joint SealantJointing of adjacent channels shall be carried prior to fixing the gratings.

Marshalls’ M-Flex sealant should be gunned into the sealant groove formed

when adjacent channels abut. Surplus sealant shall be removed from the

inner surface of the units as work proceeds.

One tube of M-Flex is suffient to seal the following:-

GratingsAdjacent Carriageway and/or footway construction shall not be commenced

within 3 days of any jointing or haunching/surrounding concrete being

placed.

Unless agreed with the specifier, Birco gratings shall be securely bolted to

Birco Channel Units having internal depths greater than 150mm, before

adjacent pavement construction is commenced.

On completion of the works, the drainage channel units shall be cleaned

out and left free from obstruction. This shall be carried out either by removal

of gratings or by high pressure water jetting (100-150 bar at 200 litres/min

minimum). Unless otherwise agreed with the specifier, the slot openings

shall be covered by timber boards or other method during jetting operations.

Outfall units shall be emptied. The cleaning process should be repeated

where necessary on completion of any remedial works.

All gratings shall be evenly spaced with bolts tightened down securely to the

appropriate torque (100, 150 and 200: 75 Nm, 300:100Nm).

Introduction

Installation of the Marshalls’ Birco Linear Drain System should be carried out in

accordance with the Specification and Standard Detail Sheets. The following

method of installation is recommended.

Excavation

Sufficient material should be excavated to accommodate the drainage

channels, concrete bedding and haunching, any ‘soft spots’ or poorly

compacted formation should be made good. The top of the Birco Channel

shall be 5mm below the final pavement surface.

Channels and outfall units shall be bedded directly onto a freshly mixed

concrete foundation as shown in the Birco Standard Detail Sheets, or

alternatively bedded on a layer of Mortar Class 12 to BS EN 998-2:2003 not

less than 10mm and not more than 40mm thick on a previously prepared

concrete foundation.

ChannelsUnless otherwise agreed, Channel Units shall be laid commencing at the

outfall to previously established line and level. Setting out pins should be

accurately located, with a string line level with the top of the drainage

channels. Pins can be located to the rear of the channels to avoid having to

lift components over the string line. Channel ends should abut as tightly as

possible. The invert and surface levels of adjacent channels shall correspond.

Any Units deviating more than 3mm in 3m from line and level shall be made

good by lifting and relaying.

A complete line of Units shall be approved by the specifier before the

completion of concrete haunching. Where cutting the Birco Channel Units is

required, they shall be cut with a concrete saw or disc cutter, so that no single

Unit is less than 350mm long. Birco gratings shall not be cut unless directed

by the engineer. Any cut galvanised steel shall be renovated using Defcon Z,

or similar approved.

In situ concrete haunching shall not be placed until the installed units

have been inspected and approved by the specifier. The concrete haunching

shall be of a concrete grade appropriate to the Drainage Channel Loading

Class as specified in the contract or the Birco Standard Detail Sheets.

Haunching shall be carried out as one operation to a complete line of

Channel Units, to the dimensions indicated in the Birco Standard Detail

sheets. Haunching / surround concrete to the Outfall Unit shall be of the same

grade as the adjacent Channel Unit haunching in accordance with the Birco

Standard detail sheets.

Where channels are laid on or adjacent to existing or proposed concrete slabs,

transverse joints shall be formed within the Units and haunching adjacent to

the slab joints. Longitudinal movement joints shall also be formed between

the haunching and the slabs as described in the contract and in accordance

with Birco Drain Standard Detail Sheets.

OutfallsOutfall Units shall be of the type specified in the contract and constructed as

shown in the Birco Standard Detail Sheets. Unless otherwise described in the

contract, they shall be bedded on and surrounded by 150mm of concrete of

the appropriate grade. A suitable section of the wall of the outfall unit shall

be cut out to allow adjacent drainage channels to abut without restricting

the flow of water. Cutting shall be achieved by using a concrete saw or disc

cutter. The horizontal joints between the sections of the outfall units shall be

sealed with M-Flex sealant. The appropriate pipe adaptor shall be placed in

the aperture for connection to the underground pipework.

M-Flex Requirement

Base Type Channels per tube

BIRCO 100

0/0 22

5/0 16

10/0 13

15/0 11

20/0 9

BIRCO 150

0/0 15

5/0 13

10/0 11

15/0 10

20/0 8

BIRCO 200

0/0 11

5/0 10

10/0 9

15/0 8

IBF 16-20 8

birco - marshalls

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